Erratum to: Hydrodynamic dispersion in β-lactoglobulin gels measured by PGSE NMR E.O. Fridjonsson, D. Bernin, J.D. Seymour, M. Nydén and S.L. Codd Eur. Phys. J. E, 34 3 (2011) 29 Published online: 24 March 2011 DOI: 10.1140/epje/i2011-11029-4